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List:       pykde
Subject:    [PyQt] Strange error message with QTreeWidget
From:       Marc Nations <mnations.lists () gmail ! com>
Date:       2009-01-26 17:37:27
Message-ID: f4010570901260937g687cb31ar5582256d53e43e9f () mail ! gmail ! com
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Hi,
I am getting the following error message and just can not figure out what is
happening to cause it:

Unexpected error: (<type 'exceptions.IndexError'>, IndexError('list index
out of range',), <traceback object at 0x019BE490>)


I have narrowed it down to at least one action...QTreeWidget.clear() and
only after I have used the tree to drag/drop widgets into another tree. If I
perform a clear() action on a freshly populated tree then I don't get the
error. However after the drag/drop is performed then somehow the indexes get
screwed up.

I also tried to clear out the tree by popping all the TreeWidgetItems out
using takeTopLevelItem<http://doc.trolltech.com/4.3/qtreewidget.html#takeTopLevelItem>().
I grabbed the TopLevelItem count and went through a loop grabbing them all.
I got the same error on the last loop. However I'm positive I didn't go
through the loop an extra time. If I had 2 top level items I made sure it
only looped twice.

It's causing a problem once I package the application for deployment because
once the app is closed it always throws up the message that an error has
occurred, check the logs. So I tried to figure out a way to catch the
exception, but I couldn't catch that one using Python try/except. I also
couldn't find a way to turn it off. Anybody have an idea what's going on
here?

Thanks,
Marc

[Attachment #5 (text/html)]

Hi,<div><br></div><div>I am getting the following error message and just can not figure out \
what is happening to cause it:</div><div><br></div><blockquote class="webkit-indent-blockquote" \
style="margin: 0 0 0 40px; border: none; padding: 0px;"> Unexpected error: (&lt;type \
&#39;exceptions.IndexError&#39;&gt;, IndexError(&#39;list index out of range&#39;,), \
&lt;traceback object at 0x019BE490&gt;)<br></blockquote><div><br></div><div>I have narrowed it \
down to at least one action...QTreeWidget.clear() and only <span class="Apple-style-span" \
style="font-style: italic;">after </span>I have used the tree to drag/drop widgets into another \
tree. If I perform a clear() action on a freshly populated tree then I don&#39;t get the error. \
However after the drag/drop is performed then somehow the indexes get screwed up.&nbsp;</div> \
<div><br></div><div>I also tried to clear out the tree by popping all the TreeWidgetItems \
ou<span class="Apple-style-span" style="font-family: arial, helvetica, sans-serif;">t \
using&nbsp;</span><a href="http://doc.trolltech.com/4.3/qtreewidget.html#takeTopLevelItem" \
style="text-decoration: none; "><span class="Apple-style-span" style="color: rgb(0, 0, \
0);"><span class="Apple-style-span" style="font-family: arial, helvetica, sans-serif;"><span \
class="Apple-style-span" style="font-size: \
small;">takeTopLevelItem</span></span></span></a><span class="Apple-style-span" \
style="font-family: arial, helvetica, sans-serif;"><span class="Apple-style-span" \
style="font-size: small;">(). I grabbed the TopLevelItem count and went through a loop grabbing \
them all. I got the same error on the last loop. However I&#39;m positive I didn&#39;t go \
through the loop an extra time. If I had 2 top level items I made sure it only looped \
twice.&nbsp;</span></span></div> <div><br></div><div>It&#39;s causing a problem once I package \
the application for deployment because once the app is closed it always throws up the message \
that an error has occurred, check the logs. So I tried to figure out a way to catch the \
exception, but I couldn&#39;t catch that one using Python try/except. I also couldn&#39;t find \
a way to turn it off. Anybody have an idea what&#39;s going on here?</div> \
<div><br></div><div>Thanks,</div><div>Marc</div>



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